One of PHP's strengths is the ability to easily inject variables, values and attributes into HTML code to create dynamic Web pages.

SAMS – Learn how to access a MySQL database from the Web using PHP, including how to read from and write to the database and how to filter potentially troublesome input data.

Add all the code and content you want to appear in this file. For example, it might be a list of links or PHP code that creates widget capabilities for your site.

If you're building NGINX sites, you'll probably need PHP-FPM support enabled. Jack Wallen shows you how.